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X-CSE-ConnectionGUID: qOW+ZZGrTdaFKhCh1g4/rQ== X-CSE-MsgGUID: pkKx/Od4QKKEdHVyLs0Brg== X-IronPort-AV: E=McAfee;i="6800,10657,11714"; a="84417408" X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="84417408" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 18:25:58 -0800 X-CSE-ConnectionGUID: lu8eLs8/SeOI/gQwEqJGig== X-CSE-MsgGUID: wkRCCaOkS/m6UwWiwKm0FQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,315,1763452800"; d="scan'208";a="217088679" Received: from lkp-server02.sh.intel.com (HELO a3936d6a266d) ([10.239.97.151]) by orviesa008.jf.intel.com with ESMTP; 27 Feb 2026 18:25:55 -0800 Received: from kbuild by a3936d6a266d with local (Exim 4.98.2) (envelope-from ) id 1vwA1a-00000000BFr-31m4; Sat, 28 Feb 2026 02:25:47 +0000 Date: Sat, 28 Feb 2026 10:24:43 +0800 From: kernel test robot To: Alice Ryhl , Tejun Heo , Miguel Ojeda Cc: oe-kbuild-all@lists.linux.dev, Lai Jiangshan , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Daniel Almeida , John Hubbard , Philipp Stanner , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Alice Ryhl , Boqun Feng , Benno Lossin , Tamir Duberstein Subject: Re: [PATCH v3 2/2] rust: workqueue: add creation of workqueues Message-ID: <202602281033.afIyhHsn-lkp@intel.com> References: <20260227-create-workqueue-v3-2-87de133f7849@google.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260227-create-workqueue-v3-2-87de133f7849@google.com> Hi Alice, kernel test robot noticed the following build warnings: [auto build test WARNING on 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f] url: https://github.com/intel-lab-lkp/linux/commits/Alice-Ryhl/rust-workqueue-restrict-delayed-work-to-global-wqs/20260227-230029 base: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f patch link: https://lore.kernel.org/r/20260227-create-workqueue-v3-2-87de133f7849%40google.com patch subject: [PATCH v3 2/2] rust: workqueue: add creation of workqueues config: riscv-randconfig-r063-20260228 (https://download.01.org/0day-ci/archive/20260228/202602281033.afIyhHsn-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9a109fbb6e184ec9bcce10615949f598f4c974a9) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260228/202602281033.afIyhHsn-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202602281033.afIyhHsn-lkp@intel.com/ All warnings (new ones prefixed by >>): >> clang diag: include/linux/workqueue.h:513:76: warning: diagnostic behavior may be improved by adding the 'format(printf, 1, 4)' attribute to the declaration of 'rust_helper_alloc_workqueue' [-Wmissing-format-attribute] -- In file included from rust/helpers/helpers.c:66: >> rust/helpers/workqueue.c:22:9: warning: diagnostic behavior may be improved by adding the 'format(printf, 1, 4)' attribute to the declaration of 'rust_helper_alloc_workqueue' [-Wmissing-format-attribute] 19 | struct workqueue_struct *rust_helper_alloc_workqueue(const char *fmt, unsigned int flags, | __attribute__((format(printf, 1, 4))) 20 | int max_active, const void *data) 21 | { 22 | return alloc_workqueue(fmt, flags, max_active, data); | ^ include/linux/workqueue.h:513:76: note: expanded from macro 'alloc_workqueue' 513 | #define alloc_workqueue(...) alloc_hooks(alloc_workqueue_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ rust/helpers/workqueue.c:19:26: note: 'rust_helper_alloc_workqueue' declared here 19 | struct workqueue_struct *rust_helper_alloc_workqueue(const char *fmt, unsigned int flags, | ^ 1 warning generated. -- llvm-nm: error: rust/helpers/helpers.o: No such file or directory >> clang diag: include/linux/workqueue.h:513:76: warning: diagnostic behavior may be improved by adding the 'format(printf, 1, 4)' attribute to the declaration of 'rust_helper_alloc_workqueue' [-Wmissing-format-attribute] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki